write my assignment 28990
We have our first project this week. So any questions you may have please fire away, don’t be shy 🙂 It helps keep me on my toes. Plus, I always give out HINTS along the way to make the process less painful so lets get started.:)
Now the quickest way to address this project is in stages for example :
The project basically requires you to what, read a text file and create a calculator interface; that’s it, you can use a file selection dialog box or hard code it; your choice.
you will need a Tokenizer correct? and here are t
private StringTokenizer tok;
private String token = new String();
private String nextToken = new String();
private String line = new String();
private JFrame frameA;
private Scanner fileIn;
private Scanner scanLine;
private JButton button;
private int left, right, left2, right2;
private int syn = 0;
private String x;
Then using the scanner and tokenizers you will read that file line by line
public void createGui(){
try{
fileIn = new Scanner(new BufferedReader(new FileReader(file)));
if(fileIn.hasNextLine()){
scanLine = new Scanner(line = fileIn.nextLine());
createWindow(scanLine);
……..
//method using scanners and tokenizers to ensure syntax while creating the gui
public void createWindow(Scanner scanLine){
if (scanLine.hasNext()){
token = scanLine.next();
if(token .equals(“Window”)){
if (scanLine.hasNext()){
token = scanLine.next();
frameA = new JFrame(getString(token));
………………………………………
//method to ensure syntax and determine the layout of the frame
public void createFrameLayout(Scanner scanLine){
if(scanLine.hasNext()){
if((token = scanLine.next()) .equals(“Layout”)){
if(scanLine.hasNext()){
token = scanLine.next();
tok = new StringTokenizer(token, “:”, true);
if((token = tok.nextToken()) .equals(“Flow”))
………………………………………………..
//method to determine the parameters used in grid layout
public GridLayout createGridLayout(Scanner scanLine){
tok = new StringTokenizer(token, “[(),]”, true);
if(tok.hasMoreTokens()){
if((token = tok.nextToken()) .equals(“Grid”)){
if(tok.hasMoreTokens()){
if((token = tok.nextToken()) .equals(“(“)){
if(tok.hasMoreTokens()){
token = tok.nextToken();
//main method for widget, everything here is added to the frame
public void createWidgets(Scanner fileIn){
while(fileIn.hasNextLine()){
scanLine = new Scanner(line = fileIn.nextLine());
if (scanLine.hasNext()){
token = scanLine.next();
x = token;
if(x .equals(“Button”)){
frameA.add(button = button(scanLine));
}
else if(x .equals(“Group”)){
for(JRadioButton rB: createGroup(fileIn)) frameA.add(rB);
………………………………………………………
//method for adding widgets to panels, use of recursion here for nested panels
public void createWidget(Scanner fileIn, JPanel jPan){
while(fileIn.hasNextLine()){
line = fileIn.nextLine();
scanLine = new Scanner(line);
if (scanLine.hasNext()){
token = scanLine.next();
x = token;
if(x .equals(“Button”)){
jPan.add(button(scanLine
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